Sean Welsh fired Inverness Caledonian Thistle to another Scottish Cup shock and leave Premiership strugglers Kilmarnock out in the Scottish Cup cold.
A penalty from Billy McKay and a second-half strike by class act Welsh wiped out Kyle Vassell's early opener to send Caley through to the semi-finals of a competition they won eight years ago.
But it is now four games without a win for Killie whose hopes of reaching the last four were extinguished by a team sitting mid-table in the Championship.
